From: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
To: Christian Brauner <brauner@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: [BUG net-next selftests/pidfd] Hang in ./pidfd_setns_test pidfd_send_signal()
Date: Sat, 9 Mar 2024 14:34:01 +0100 [thread overview]
Message-ID: <e2ba3f8c-80e6-477d-9cea-1c9af820e0ed@alu.unizg.hr> (raw)
[-- Attachment #1: Type: text/plain, Size: 25031 bytes --]
Hi,
In the net-next tree commit v6.8-rc7-2348-g75c2946db360, vannila except for this minor mod
to selftest suite:
----------------------------------------------------------------------------------------
marvin@defiant:~/linux/kernel/net-next$ git diff
diff --git a/tools/testing/selftests/breakpoints/Makefile b/tools/testing/selftests/breakpoints/Makefile
index 9ec2c78de8ca..76a0e3837136 100644
--- a/tools/testing/selftests/breakpoints/Makefile
+++ b/tools/testing/selftests/breakpoints/Makefile
@@ -3,7 +3,7 @@
uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
-TEST_GEN_PROGS := step_after_suspend_test
+# TEST_GEN_PROGS := step_after_suspend_test
ifeq ($(ARCH),x86)
TEST_GEN_PROGS += breakpoint_test
marvin@defiant:~/linux/kernel/net-next$
----------------------------------------------------------------------------------------
there seems to be a bug.
The symptom is a hang in forever loop in ./pidfd_setns_test :
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
pidfd_send_signal(18, SIGKILL, NULL, 0) = 0
.
.
.
This could happen here:
FIXTURE_TEARDOWN(current_nsset)
{
int i;
→ ASSERT_EQ(sys_pidfd_send_signal(self->child_pidfd1,
SIGKILL, NULL, 0), 0);
→ ASSERT_EQ(sys_pidfd_send_signal(self->child_pidfd2,
SIGKILL, NULL, 0), 0);
for (i = 0; i < PIDFD_NS_MAX; i++) {
if (self->nsfds[i] >= 0)
close(self->nsfds[i]);
if (self->child_nsfds1[i] >= 0)
close(self->child_nsfds1[i]);
if (self->child_nsfds2[i] >= 0)
close(self->child_nsfds2[i]);
}
if (self->child_pidfd1 >= 0)
EXPECT_EQ(0, close(self->child_pidfd1));
if (self->child_pidfd2 >= 0)
EXPECT_EQ(0, close(self->child_pidfd2));
ASSERT_EQ(sys_waitid(P_PID, self->child_pid_exited, WEXITED), 0);
ASSERT_EQ(sys_waitid(P_PID, self->child_pid1, WEXITED), 0);
ASSERT_EQ(sys_waitid(P_PID, self->child_pid2, WEXITED), 0);
}
The testsuite output is this:
root@defiant:/home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd# ./pidfd_setns_test
TAP version 13
1..7
# Starting 7 tests from 2 test cases.
# RUN global.setns_einval ...
# OK global.setns_einval
ok 1 global.setns_einval
# RUN current_nsset.invalid_flags ...
# pidfd_setns_test.c:161:invalid_flags:Expected self->child_pid_exited (0) > 0 (0)
# OK current_nsset.invalid_flags
ok 2 current_nsset.invalid_flags
# RUN current_nsset.pidfd_exited_child ...
# pidfd_setns_test.c:161:pidfd_exited_child:Expected self->child_pid_exited (0) > 0 (0)
# OK current_nsset.pidfd_exited_child
ok 3 current_nsset.pidfd_exited_child
# RUN current_nsset.pidfd_incremental_setns ...
# pidfd_setns_test.c:161:pidfd_incremental_setns:Expected self->child_pid_exited (0) > 0 (0)
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to user namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to mnt namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to pid namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to uts namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to ipc namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to net namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to cgroup namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to pid_for_children namespace of 1005687 via pidfd 18
# pidfd_setns_test.c:391:pidfd_incremental_setns:Expected setns(self->child_pidfd1, info->flag) (-1) == 0 (0)
# pidfd_setns_test.c:392:pidfd_incremental_setns:Too many users - Failed to setns to time namespace of 1005687 via pidfd 18
# pidfd_incremental_setns: Test terminated by timeout
# FAIL current_nsset.pidfd_incremental_setns
not ok 4 current_nsset.pidfd_incremental_setns
# RUN current_nsset.nsfd_incremental_setns ...
# pidfd_setns_test.c:161:nsfd_incremental_setns:Expected self->child_pid_exited (0) > 0 (0)
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to user namespace of 1005695 via nsfd 17
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to mnt namespace of 1005695 via nsfd 22
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to pid namespace of 1005695 via nsfd 25
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to uts namespace of 1005695 via nsfd 28
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to ipc namespace of 1005695 via nsfd 31
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to net namespace of 1005695 via nsfd 34
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to cgroup namespace of 1005695 via nsfd 37
# pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to pid_for_children namespace of 1005695 via nsfd 40
# pidfd_setns_test.c:427:nsfd_incremental_setns:Expected setns(self->child_nsfds1[i], info->flag) (-1) == 0 (0)
# pidfd_setns_test.c:428:nsfd_incremental_setns:Too many users - Failed to setns to time namespace of 1005695 via nsfd 43
# nsfd_incremental_setns: Test terminated by timeout
# FAIL current_nsset.nsfd_incremental_setns
not ok 5 current_nsset.nsfd_incremental_setns
# RUN current_nsset.pidfd_one_shot_setns ...
# pidfd_setns_test.c:161:pidfd_one_shot_setns:Expected self->child_pid_exited (0) > 0 (0)
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding user namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding mnt namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding pid namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding uts namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding ipc namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding net namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding cgroup namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding pid_for_children namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:462:pidfd_one_shot_setns:Adding time namespace of 1005710 to list of namespaces to attach to
# pidfd_setns_test.c:466:pidfd_one_shot_setns:Expected setns(self->child_pidfd1, flags) (-1) == 0 (0)
# pidfd_setns_test.c:467:pidfd_one_shot_setns:Too many users - Failed to setns to namespaces of 1005710
# pidfd_one_shot_setns: Test terminated by timeout
# FAIL current_nsset.pidfd_one_shot_setns
not ok 6 current_nsset.pidfd_one_shot_setns
# RUN current_nsset.no_foul_play ...
# pidfd_setns_test.c:161:no_foul_play:Expected self->child_pid_exited (0) > 0 (0)
# pidfd_setns_test.c:506:no_foul_play:Adding user namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding mnt namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding pid namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding uts namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding ipc namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding net namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding cgroup namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:506:no_foul_play:Adding time namespace of 1005745 to list of namespaces to attach to
# pidfd_setns_test.c:510:no_foul_play:Expected setns(self->child_pidfd1, flags) (-1) == 0 (0)
# pidfd_setns_test.c:511:no_foul_play:Too many users - Failed to setns to namespaces of 1005745 vid pidfd 18
# no_foul_play: Test terminated by timeout
# FAIL current_nsset.no_foul_play
not ok 7 current_nsset.no_foul_play
# FAILED: 3 / 7 tests passed.
# Totals: pass:3 fail:4 xfail:0 xpass:0 skip:0 error:0
root@defiant:/home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd#
The main selftest thread is still hanging with total output of:
make[3]: Entering directory '/home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd'
TAP version 13
1..7
# timeout set to 45
# selftests: pidfd: pidfd_test
# TAP version 13
# 1..8
# # Parent: pid: 958028
# # Parent: Waiting for Child (958029) to complete.
# # Child (pidfd): starting. pid 958029 tid 958029
# # Child Thread: starting. pid 958029 tid 958030 ; and sleeping
# # Child Thread: doing exec of sleep
# # Time waited for child: 3
# ok 1 pidfd_poll check for premature notification on child thread exec test: Passed
# # Parent: pid: 958028
# # Parent: Waiting for Child (958031) to complete.
# # Child (pidfd): starting. pid 958031 tid 958031
# # Child Thread: starting. pid 958031 tid 958032 ; and sleeping
# # Child Thread: doing exec of sleep
# # Parent: Child process waited for.
# # Time waited for child: 3
# ok 2 pidfd_poll check for premature notification on child thread exec test: Passed
# # Parent: pid: 958028
# # Parent: Waiting for Child (958033) to complete.
# # Child: starting. pid 958033 tid 958033
# # Child Thread: starting. pid 958033 tid 958034 ; and sleeping
# # Child Thread: starting. pid 958033 tid 958035 ; and sleeping
# # # Child Thread: DONE. pid 958033 tid 958034
# Child Thread: DONE. pid 958033 tid 958035
# # Time since child exit: 3
# ok 3 pidfd_poll check for premature notification on non-emptygroup leader exit test: Passed
# # Parent: pid: 958028
# # Parent: Waiting for Child (958036) to complete.
# # Child: starting. pid 958036 tid 958036
# # Child Thread: starting. pid 958036 tid 958037 ; and sleeping
# # Child Thread: starting. pid 958036 tid 958038 ; and sleeping
# # Child Thread: DONE. pid 958036 tid 958037
# # Child Thread: DONE. pid 958036 tid 958038
# # Parent: Child process waited for.
# # Time since child exit: 3
# ok 4 pidfd_poll check for premature notification on non-emptygroup leader exit test: Passed
# ok 5 pidfd_send_signal check for support test: pidfd_send_signal() syscall is supported. Tests can be executed
# ok 6 pidfd_send_signal send SIGUSR1 test: Sent signal
# # waitpid WEXITSTATUS=0
# ok 7 pidfd_send_signal signal exited process test: Failed to send signal as expected
# # pid to recycle is 1000
# ok 8 # SKIP pidfd_send_signal signal recycled pid test: Skipping test
# # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:1 error:0
ok 1 selftests: pidfd: pidfd_test
# timeout set to 45
# selftests: pidfd: pidfd_fdinfo_test
# TAP version 13
# 1..2
# # New child: 990827, fd: 5
# # New child: 990828, fd: 6
# # waitpid WEXITSTATUS=0
# # waitpid WEXITSTATUS=0
# ok 1 pidfd check for NSpid in fdinfo test: Passed
# # New child: 990830, fd: 5
# # waitpid WEXITSTATUS=0
# ok 2 pidfd check fdinfo for dead process test: Passed
# # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 2 selftests: pidfd: pidfd_fdinfo_test
# timeout set to 45
# selftests: pidfd: pidfd_open_test
# 1..3
# ok 1 do not allow invalid pid test: passed
# ok 2 do not allow invalid flag test: passed
# ok 3 open a new pidfd test: passed
# # pidfd 5 refers to process with pid 990848
# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 3 selftests: pidfd: pidfd_open_test
# timeout set to 45
# selftests: pidfd: pidfd_poll_test
# # running pidfd poll test for 10000 iterations
# ok 1 pidfd poll test: pass
# # Planned tests != run tests (0 != 1)
# # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 4 selftests: pidfd: pidfd_poll_test
# timeout set to 45
# selftests: pidfd: pidfd_wait
# TAP version 13
# 1..3
# # Starting 3 tests from 1 test cases.
# # RUN global.wait_simple ...
# # OK global.wait_simple
# ok 1 global.wait_simple
# # RUN global.wait_states ...
# # OK global.wait_states
# ok 2 global.wait_states
# # RUN global.wait_nonblock ...
# # OK global.wait_nonblock
# ok 3 global.wait_nonblock
# # PASSED: 3 / 3 tests passed.
# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 5 selftests: pidfd: pidfd_wait
# timeout set to 45
# selftests: pidfd: pidfd_getfd_test
# TAP version 13
# 1..4
# # Starting 4 tests from 2 test cases.
# # RUN global.flags_set ...
# # OK global.flags_set
# ok 1 global.flags_set
# # RUN child.disable_ptrace ...
# # OK child.disable_ptrace
# ok 2 child.disable_ptrace
# # RUN child.fetch_fd ...
# # OK child.fetch_fd
# ok 3 child.fetch_fd
# # RUN child.test_unknown_fd ...
# # OK child.test_unknown_fd
# ok 4 child.test_unknown_fd
# # PASSED: 4 / 4 tests passed.
# # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 6 selftests: pidfd: pidfd_getfd_test
# timeout set to 45
# selftests: pidfd: pidfd_setns_test
# TAP version 13
# 1..7
# # Starting 7 tests from 2 test cases.
# # RUN global.setns_einval ...
# # OK global.setns_einval
# ok 1 global.setns_einval
# # RUN current_nsset.invalid_flags ...
# # pidfd_setns_test.c:161:invalid_flags:Expected self->child_pid_exited (0) > 0 (0)
# # OK current_nsset.invalid_flags
# ok 2 current_nsset.invalid_flags
# # RUN current_nsset.pidfd_exited_child ...
# # pidfd_setns_test.c:161:pidfd_exited_child:Expected self->child_pid_exited (0) > 0 (0)
# # OK current_nsset.pidfd_exited_child
# ok 3 current_nsset.pidfd_exited_child
# # RUN current_nsset.pidfd_incremental_setns ...
# # pidfd_setns_test.c:161:pidfd_incremental_setns:Expected self->child_pid_exited (0) > 0 (0)
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to user namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to mnt namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to pid namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to uts namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to ipc namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to net namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to cgroup namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:408:pidfd_incremental_setns:Managed to correctly setns to pid_for_children namespace of 1000951 via pidfd 20
# # pidfd_setns_test.c:391:pidfd_incremental_setns:Expected setns(self->child_pidfd1, info->flag) (-1) == 0 (0)
# # pidfd_setns_test.c:392:pidfd_incremental_setns:Too many users - Failed to setns to time namespace of 1000951 via pidfd 20
# # pidfd_incremental_setns: Test terminated by timeout
# # FAIL current_nsset.pidfd_incremental_setns
# not ok 4 current_nsset.pidfd_incremental_setns
# # RUN current_nsset.nsfd_incremental_setns ...
# # pidfd_setns_test.c:161:nsfd_incremental_setns:Expected self->child_pid_exited (0) > 0 (0)
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to user namespace of 1000958 via nsfd 19
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to mnt namespace of 1000958 via nsfd 24
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to pid namespace of 1000958 via nsfd 27
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to uts namespace of 1000958 via nsfd 30
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to ipc namespace of 1000958 via nsfd 33
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to net namespace of 1000958 via nsfd 36
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to cgroup namespace of 1000958 via nsfd 39
# # pidfd_setns_test.c:444:nsfd_incremental_setns:Managed to correctly setns to pid_for_children namespace of 1000958 via nsfd 42
# # pidfd_setns_test.c:427:nsfd_incremental_setns:Expected setns(self->child_nsfds1[i], info->flag) (-1) == 0 (0)
# # pidfd_setns_test.c:428:nsfd_incremental_setns:Too many users - Failed to setns to time namespace of 1000958 via nsfd 45
[HANG]
# ps -efwww
root 958005 66430 0 01:04 pts/2 00:00:00 make OUTPUT=/home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd -C pidfd run_tests SRC_PATH=/home/marvin/linux/kernel/net-next/tools/testing/selftests OBJ_PATH=/home/marvin/linux/kernel/net-next/tools/testing/selftests O=/home/marvin/linux/kernel/net-next
root 958006 958005 0 01:04 pts/2 00:00:00 /bin/sh -c BASE_DIR="/home/marvin/linux/kernel/net-next/tools/testing/selftests"; . /home/marvin/linux/kernel/net-next/tools/testing/selftests/kselftest/runner.sh; if [ "X" != "X" ]; then per_test_logging=1; fi; run_many /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_fdinfo_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_open_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_poll_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_wait /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_getfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_setns_test
root 1000927 958006 0 01:05 pts/2 00:00:00 /bin/sh -c BASE_DIR="/home/marvin/linux/kernel/net-next/tools/testing/selftests"; . /home/marvin/linux/kernel/net-next/tools/testing/selftests/kselftest/runner.sh; if [ "X" != "X" ]; then per_test_logging=1; fi; run_many /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_fdinfo_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_open_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_poll_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_wait /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_getfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_setns_test
root 1000928 1000927 0 01:05 pts/2 00:00:00 /bin/sh -c BASE_DIR="/home/marvin/linux/kernel/net-next/tools/testing/selftests"; . /home/marvin/linux/kernel/net-next/tools/testing/selftests/kselftest/runner.sh; if [ "X" != "X" ]; then per_test_logging=1; fi; run_many /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_fdinfo_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_open_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_poll_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_wait /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_getfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_setns_test
root 1000929 1000928 0 01:05 pts/2 00:00:00 /bin/sh -c BASE_DIR="/home/marvin/linux/kernel/net-next/tools/testing/selftests"; . /home/marvin/linux/kernel/net-next/tools/testing/selftests/kselftest/runner.sh; if [ "X" != "X" ]; then per_test_logging=1; fi; run_many /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_fdinfo_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_open_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_poll_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_wait /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_getfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_setns_test
root 1000932 1000929 0 01:05 pts/2 00:00:00 /bin/sh -c BASE_DIR="/home/marvin/linux/kernel/net-next/tools/testing/selftests"; . /home/marvin/linux/kernel/net-next/tools/testing/selftests/kselftest/runner.sh; if [ "X" != "X" ]; then per_test_logging=1; fi; run_many /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_fdinfo_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_open_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_poll_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_wait /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_getfd_test /home/marvin/linux/kernel/net-next/tools/testing/selftests/pidfd/pidfd_setns_test
root 1000934 1000932 0 01:05 pts/2 00:00:00 perl /home/marvin/linux/kernel/net-next/tools/testing/selftests/kselftest/prefix.pl
root 1000955 2931 0 01:05 pts/2 00:00:00 ./pidfd_setns_test
root 1000956 1000955 99 01:05 pts/2 13:20:17 ./pidfd_setns_test
root 1000957 1000956 0 01:05 pts/2 00:00:00 [pidfd_setns_tes] <defunct>
root 1000958 1000956 0 01:05 pts/2 00:00:00 [pidfd_setns_tes] <defunct>
root 1000959 1000956 0 01:05 pts/2 00:00:00 ./pidfd_setns_test
in a 99%CPU forever loop:
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
pidfd_send_signal(20, SIGKILL, NULL, 0) = 0
That's about all there is. Nothing interesting in /var/log/syslog or dmesg.
Hope this helps.
Best regards,
Mirsad Todorovac
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next reply other threads:[~2024-03-09 13:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-09 13:34 Mirsad Todorovac [this message]
2024-03-09 14:25 ` [BUG net-next selftests/pidfd] Hang in ./pidfd_setns_test pidfd_send_signal() Mirsad Todorovac
2024-03-09 14:29 ` Mirsad Todorovac
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